<?php
/*
  $Id: freeofcharge.php,v 1.0 2005/07/11 17:04:32 cap Exp $

  Free Of Charge Payment Module for osCommerce 2.2 MS2

  Module written by Want A Better Website, Inc.
  http://www.wantabetterwebsite.com/

  Module checks the grand total of the customer's shopping cart.
  If the grand total is $0.00 and this module is enabled, a
  Free Of Charge option is given to the customer on checkout.

  Module Copyright (c) 2005 Want A Better Website, Inc.
  osCommerce Copyright (c) 2003 osCommerce

  Released under the GNU General Public License
*/

  class freeofcharge {
    var $code, $title, $description, $enabled;

// class constructor
    function freeofcharge() {
      global $order;

      $this->code = 'freeofcharge';
      $this->title = MODULE_PAYMENT_FOC_TEXT_TITLE;
      $this->description = MODULE_PAYMENT_FOC_TEXT_DESCRIPTION;
      $this->sort_order = MODULE_PAYMENT_FOC_SORT_ORDER;
      $this->enabled = ((MODULE_PAYMENT_FOC_STATUS == 'True') ? true : false);
      if ((int)MODULE_PAYMENT_FOC_ORDER_STATUS_ID > 0) {
        $this->order_status = MODULE_PAYMENT_FOC_ORDER_STATUS_ID;
      }
      
      if (is_object($order)) $this->update_status();
    }

// class methods
    function update_status() {
      global $order;

// disable the module if the order only contains virtual products
      if ($this->enabled == true) {
        global $cart;
        if ($cart->show_total() >= 0.01) {
          $this->enabled = false;
        }
        global $order;
        if ($order->info['subtotal']+$order->info['shipping_cost']>=0.01) {
			$this->enabled = false;
		}
      }
    }

    function javascript_validation() {
      return false;
    }

    function selection() {
      return array('id' => $this->code,
                   'module' => $this->title);
    }

    function pre_confirmation_check() {
      return false;
    }

    function confirmation() {
      return false;
    }

    function process_button() {
      return false;
    }

    function before_process() {
      return false;
    }

    function after_process() {
      return false;
    }

    function get_error() {
      return false;
    }

    function check() {
      if (!isset($this->_check)) {
        $check_query = tep_db_query("select configuration_value from " . TABLE_CONFIGURATION . " where configuration_key = 'MODULE_PAYMENT_FOC_STATUS'");
        $this->_check = tep_db_num_rows($check_query);
      }
      return $this->_check;
    }

    function install() {
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Enable Free of charge Module', 'MODULE_PAYMENT_FOC_STATUS', 'True', 'Do you want to accept Cash On Delevery payments?', '6', '1', 'tep_cfg_select_option(array(\'True\', \'False\'), ', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, use_function, set_function, date_added) values ('Payment Zone', 'MODULE_PAYMENT_FOC_ZONE', '0', 'If a zone is selected, only enable this payment method for that zone.', '6', '2', 'tep_get_zone_class_title', 'tep_cfg_pull_down_zone_classes(', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Sort order of display.', 'MODULE_PAYMENT_FOC_SORT_ORDER', '0', 'Sort order of display. Lowest is displayed first.', '6', '0', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, use_function, date_added) values ('Set Order Status', 'MODULE_PAYMENT_FOC_ORDER_STATUS_ID', '0', 'Set the status of orders made with this payment module to this value', '6', '0', 'tep_cfg_pull_down_order_statuses(', 'tep_get_order_status_name', now())");
   }

    function remove() {
      tep_db_query("delete from " . TABLE_CONFIGURATION . " where configuration_key in ('" . implode("', '", $this->keys()) . "')");
    }

    function keys() {
      return array('MODULE_PAYMENT_FOC_STATUS', 'MODULE_PAYMENT_FOC_ZONE', 'MODULE_PAYMENT_FOC_ORDER_STATUS_ID', 'MODULE_PAYMENT_FOC_SORT_ORDER');
    }
  }
?>